Antiskidding attachment for wheels.



0. H. MYERS.

ANTISKIDDING ATTACHMENT FOB WHEELS.

APPLICATION FILED MAR. 20, 1911.

Pafinted Feb. 6,1912.

2 SHEETS-BHEET 1.

wwmtoz I 61M HLES. H. M YE HS v 0. H. MYERS. ANTISKIDDING ATTACHMENT FOR WHEELS.

APPLICATION FILED MA1L20, 1911. v 1,01 6,846, Patented Feb. 6, 1912.

2 SHEETS-SHEET 2.

I CHARLES HMYERS Q Wtnum UNITED sTATEs oiiannns H. MYERS, or FRANKLIN, PENNSYLVANIA.

Specification of Letters Patent. Application flled'larch 20. 1911. Serial No. 615,501.

To all whom it may concern: i

Be it known that I, CHARLES H. MYERS,

citizen of the {United States, residing at Franklin, in the county of. Venango and State of Pennsylvania, have invented certain new and-useful Improvements in Antiskidding Attachments for yW'heels,'of which the following is a specification. I

The object, construction and operation of my improved anti-skidding attachment for wheels are herein .set forth with suflicient clearness to enable those skilled in the art to which it appertains, tomake and use the same.

In the drawings I have fully illustrated a certain form and-application of my attachment, the various figures in said drawings being as follows Figure 1 is a side elevation of a wheel equipped with my improved anti-skidding attachment. Fig. 2 is a transverse section of the rim and tire of a wheel having a solid or cushion tire, showing my attachment applied thereto. Fig. 3 is a transverse section ofthe rim and tire of a wheel equipped with a pneumatic tire, showing my device ap plied thereto. Fig. 4: showsa portion of the "tension or retaining device, by means of which my attachment is secured upon a wheel. Fig. 5 is a plan view of one of the tread-plates which I empLoy,-,-the side plates being'detached there rom. Fig. 6 is a central, longitudinal section of said treadplate. Fig.7 is a'transverse section of said tre d plate, and shows the same in position up a tire of small size. shows the method of adapting my attache ment to tires of various sizes. Fig. 8 shows tire.

The same reference numerals are applied the application of my device to a dual-tread to identical parts in. all the views.

As clearly shown-in the drawings, my improved anti-skidding attachment consists of a plate 1, which-presents a convex outer face: to the road surface,- the inner, tire contacting face being of concave conformation. The lateral edges of the plate are formed into'inwardly-projecting flanges 2,, and the ends of said plate'are formed into This. view also outwardly-projecting, transverse flanges 3. In proximity to the lateral edges of said plate slots 4 are formed for the attachment of side plates 5, by means of which the tread-plates 1 are attached to'the wheel. Longitudinally-extending flange s6 are also formed upon the tread of plate 1, which flanges are preferably formed b ylbending a portion ofthe metal outward from the body of the'plate, which construction forms. an

opening 7 in said plate. Said flanges 6 are positioned somewhat. obliquely upon the plate, the obliquity of the respective flanges being in opposite directions, as illustrated in Fig. 5. In said Fig. 5 I have placed an arrow which indicates the direction of travel of the plate when in service. It will be readily understood by an inspection of this view that'said center flanges 6 converge toward the end which first comes in contact with the road surface, they also have a ver- Patented Feb. 6,1912.

tical, outward divergence, as illustrated in Fig. 7, so thatthey will not pick up" and retain earth, mud or other portions of'the road traveled over.

In constructing all portions of anti ,skidding attachment, particular care has ben exercised inits design, so that it will readily and automatically free itself from mud, etc.', which may adhere to it when contact with the road surface- The side plates 5 are formed at their 11pper ends into hooks 6 which engage slots 4 in the tread-plates 1. Said side plates are preferably bifurcate at the plate-engagin v end, and two slots 4 are provided for g engagement of said "bifurcations, which causes said plates to havefa' greater stability than could otherwise be secured. I do not wish, however, to be limited to the precise method shown for joining said side plates to the tread-plate 1, as othermeans could be employed for securing a flexible attach ment at this point, without departing from the scope of my invent-ion. The" free end of plate 5 is also formedinto a hook 8 for the engagement or reception of a'tension device, which consists preferably of a flexible, metallic cable 9, provided with suitable means for tightening same, and causing said plates to exert a centerwise pressure upon t-heitire. Said tightening or tension device -may be sleeves 10, internally screw-threaded at one end to receive a right hand, and a left hand screw 11 11, which, when turned in one direction, causes the approximate ends of said sleeves to approach and exert a tension upon cable 9, the respective ends of 5 tension. One or more tightening devices My anti-skidding attachment may be readily adapted tobe applied to tires of different widths, and by a reference to Figs. 3 and 7 it will be noted that the side-plates are offset toward the rim .of the wheel. Said ofl'.-setting,-. as shown in Fig. 7, is employedwith solid tires of a less width than those for which the tread-plates 1' were originally intended and designed, and in this case said off-setting is for the purpose of preventing a lateral movement of said plate 1 upon the tread of the tire. In the application of my attachment to pneumatic tires, said off-setting is employed to prevent the side plates from coming in contact with the sides of the'resilient portion of the tire, thus preventing the wear, damage and excoriation of the tire which would be caused if such contact were not prevented.

' Plates 1 and5 are preferably stamped of sheet metal, and may beof any size, thickness and strength that the character of the service in which they are employed may 1e- Iquire. All edges of said plates which come incontact with resilientpor'tions of the tires are suitably rounded, to 'prevent excoriation and cutting of said tires, but at the same time, said plates are so formed as to secure to said tires with thereon.

'Itwill be readily noted .that the construe tion of my tread-plate is such that its tractive'action will be fully" equal to its anti- 7 skidding action, the end flanges 3 being the feature which, to a great extent,\prevents 1 the revoluble slipping of the wheel and increases its tractive power. The obliquity of flanges 6 also contributes somewhat to'said jitrac'tive action, though the action of -saidflanges is largely'an anti-skidding one.

" 'fThe relative position, and opposing obliquityof flanges 6. is, an important feature ca' f my tread plate, for the following reasons -which havelbeen previously alluded to w fe? LPlate 1 is placed upon the wheel so that its forward travel carries it in the direction in (heated by the arrow in Fig. 5 and this causes the more approximate ends of flanges may be applied to cable 9 asdesired a maximum of clinging effect of the platesa mmimum of pressure space between said flanges to become packed with road surface, as would be the case if said flanges were parellel, or the convergence extended in the opposite direction. vAs previously stated, said obliquity contributes to the tractive action of my device, while acting directly as the anti-skidding element thereof.

In Fig. 8 I'have shown how my anti-skidding attachment may be applied to dual tread tires, and the method of attachment here illustrated is as follows :Two plates 1 are joined by means of a hook 14.- and a wire or cable of suitable diameter is passed around the wheel upon the outside of said hooks, and engages the hooks of all the plates upon the wheel. The usual sideplates 5 are employed upon the outside of the wheel and the tension device shown-in Figs. 1 and 4 is employed for securing the device in position. One set ofplates could be used upon a dualtread tire, instead of two, as shown, and in this case a very short side plate of much the same construction as. hook 14 would be. employed with a suitable tension device. c

The side-plates 5 are identical in construction, are readily removable and interchange able and may be separately renewed if necessary, and the tread-plate 1 may be renewed if necessary without discarding either of'the side plates.

The device maybe readily folded into a compact package for transportation when not in use or for storage or shipment. I claim:-

1. In an anti-skidding attachment for wheels, a tread-plate, oblique, relatively divergmg flanges and transverse flanges upon the outer face of said plate, longitudinal, inwardly-extending flanges at the lateral edges of said plate, there being slots through lot:

said plate, in proximity to said lateral flanges, side-plates bifurcate at one end thereof and formed at the extremity of said bifurcations into hooks arranged to engage said tread-plates throughsaid.slots, and a flexible tension device exerting a tension upon said plates in the.directionof the cen-' ter of the wheel.

'2. .In an anti-skidding attachment for wheels, the combination with the wheel of a v self-propelled vehicle of misread-plate, ob-

lique relatively-diverging flanges upon the tread of said plate formed by carryin a portion of the metal thereof outward, t us leaving an opening in the plate between said flanges, inwardly-extending flan es upon the lateral ed esof said plate, a si eplate upon either ide of. saidltread-plate, bifurcate at one end and? flexibly joined at said .end to said tread-plate in proximity to 1,016,846 Y a a said inwartlly-extendin flange,. said side purpose of drawing saill plates toward the 10 plate being off-set, for t e purpose of bearcenter of the wheel.

ing against the metallic member of the rimvIntestimon 'where'of I' aifix my signature 7 0% said wheiahht'he innerfemll1 of fiaiilbside .in presence 0 two witnesses. p ate towar t e center 0 t e w ee eing formed into a hook'for the engagement of CHARLES MYERS a retaining cable, a retaimng cable engaging Witnesses: I

.said plates and screweactuated means adapt-' H. G. Jbnrrsofi;

ed to exert tension upon said cable fer the C. M. SMITH. 

